The Smith chart was developed by Philip Smith at Bell Telephone's Radio Research Lab during the 1930s. Be sure to check out our entry on Philip Smith in our Microwave Hall of Fame! Phil's widow until recently operated Analog Instruments, the company that sold the official Smith chart for many, many years. The trademark on the Smith Chart recently expired, and Ms. Smith sold the Copyright for the Smith Chart to the IEEE MTT Society in April 2015. Richard Snyder participated in the negotiations with Ms. You may notice from time to time that the Smith chart is used in the background on presentations at MTT-S venues. Update August 2019: Here's a cool template that we got from Frank at TNO, a research organization based in the Netherlands that is known for GaN, SiGe and AESA work. They're promoting European Microwave Week 2020 in Utrecht (the Netherlands) with this Smith Chart template. New for December 2018! The first year ECE students under the guidance of Dr S Raghavan, Professor, ECE dept., N I T Trichy, came out for the first time with the novel idea of putting a Smith chart on. We've got our own Smith chart tutorial here, thanks to a fan from Florida, Mike Weinstein, who really knows this subject, and is a fine writer too. Some Smith chart links What's a Smith chart? Which way is up and where's that short circuit? If you want to download a Smith chart in pdf or gif format, we have several different ones in our download area!Ī clickable index to our Smith chart page: If anyone else wants to be a technical contributor on their favorite microwave subject, please contact us.

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